Numerical Investigation of the Coupled Flutter Onset Mechanism for Streamlined Bridge Deck Cross-Sections

In this work the aeroelastic stability of long-span bridge decks is numerically investigated. A simulation model is presented by which the aerodynamic fields and the structural motion are simultaneously and jointly simulated. The bridge deck is schematised as a bidimensional rigid body subject to elastic restraints corresponding to the torsional and the vertical degree of freedom, and the ALE formulated 2D URANS equations are numerically integrated by a finite volume technique on meshes which deform according to the motion of the structure. The validation of the numerical model is performed by comparing the numerical results with those of an experimental campaign, and is used to investigate the aeroelastic stability of the Forth Road Bridge deck. A profound insight into the onset and the amplification mechanisms of coupled flutter for long-span bridge decks is proposed.

[1]  Florian Menter,et al.  The SST Turbulence Model with Improved Wall Treatment for Heat Transfer Predictions in Gas Turbines , 2003 .

[2]  Armando Miguel Awruch,et al.  Finite element simulation of the wind action over bridge sectional models: Application to the Guamá River Bridge (Pará State, Brazil) , 2008 .

[3]  Florian R. Menter,et al.  Review of the shear-stress transport turbulence model experience from an industrial perspective , 2009 .

[4]  Yozo Fujino,et al.  NUMERICAL STUDY OF AERODYNAMIC CHARACTERISTICS OF SQUARE PRISM IN A UNIFORM FLOW , 2006 .

[5]  Kenji Shimada,et al.  Predictability of unsteady two-dimensional k−ε model on the aerodynamic instabilities of some rectangular prisms , 2012 .

[6]  Spencer J. Sherwin,et al.  Flutter instability prediction techniques for bridge deck sections , 2003 .

[7]  F. Gallerano,et al.  Upwind WENO scheme for Shallow Water Equations in contravariant formulation , 2012 .

[8]  Francesco Ubertini,et al.  On the identification of flutter derivatives of bridge decks via RANS turbulence models: Benchmarking on rectangular prisms , 2014 .

[9]  F. Gallerano,et al.  Central WENO scheme for the integral form of contravariant shallow‐water equations , 2011 .

[10]  Gianni Bartoli,et al.  VIV–galloping instability of rectangular cylinders: Review and new experiments , 2014 .

[11]  Hisato Matsumiya,et al.  New consideration on flutter properties based on step-by-step analysis , 2010 .

[12]  A. Larsen.  Aerodynamics of the Tacoma Narrows Bridge - 60 Years Later , 2000 .

[13]  F. Gallerano,et al.  A new numerical model for simulations of wave transformation, breaking and long‐shore currents in complex coastal regions , 2016 .

[14]  Hiroshi Katsuchi,et al.  Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS , 2016 .

[15]  F. Gallerano,et al.  From rooted to floating vegetal species in lagoons as a consequence of the increases of external nutrient load: An analysis by model of the species selection mechanism , 2006 .

[16]  Luca Bruno,et al.  The validity of 2D numerical simulations of vortical structures around a bridge deck , 2003 .

[17]  Steven J. Ruuth,et al.  A New Class of Optimal High-Order Strong-Stability-Preserving Time Discretization Methods , 2002, SIAM J. Numer. Anal..

[18]  Earl H. Dowell,et al.  A modern course in aeroelasticity (third revised and enlarged edition) , 1995 .

[19]  Miguel A. Astiz,et al.  Flutter Stability of Very Long Suspension Bridges , 1998 .

[20]  M. W. Sarwar,et al.  Numerical study on suppression of vortex-induced vibrations of box girder bridge section by aerodynamic countermeasures , 2010 .

[21]  F. Gallerano,et al.  An integral contravariant formulation of the fully non-linear Boussinesq equations , 2014 .

[22]  Spencer J. Sherwin,et al.  A moving frame of reference algorithm for fluid/structure interaction of rotating and translating bodies , 2002 .

[23]  Ming Gu,et al.  Wind Tunnel and CFD Study on Identification of Flutter Derivatives of a Long‐Span Self‐Anchored Suspension Bridge , 2007, Comput. Aided Civ. Infrastructure Eng..

[24]  J. Lang,et al.  Adaptive large eddy simulation with moving grids , 2013 .

[25]  J. Frandsen.  Numerical bridge deck studies using finite elements. Part I: flutter , 2004 .

[26]  Claudio Mannini,et al.  Unsteady RANS modelling of flow past a rectangular cylinder: Investigation of Reynolds number effects , 2010 .

[27]  Robert H. Scanlan,et al.  AIR FOIL AND BRIDGE DECK FLUTTER DERIVATIVES , 1971 .

[28]  F. Nieto,et al.  On the applicability of 2D URANS and SST k - ω turbulence model to the fluid-structure interaction of rectangular cylinders , 2015 .

[29]  F. Gallerano,et al.  Numerical simulation of wave transformation, breaking and runup by a contra-variant fully non-linear Boussinesq equations model , 2016 .

[30]  Fue-Sang Lien,et al.  A comparison of large Eddy simulations with a standard k–ε Reynolds-averaged Navier–Stokes model for the prediction of a fully developed turbulent flow over a matrix of cubes , 2003 .

[31]  R. Panneer Selvam,et al.  Aeroelastic analysis of bridges using FEM and moving grids , 2002 .